329885987 has 12 divisors (see below), whose sum is σ = 350540064. Its totient is φ = 310339920.

The previous prime is 329885947. The next prime is 329885989. The reversal of 329885987 is 789588923.

It is a de Polignac number, because none of the positive numbers 2^k-329885987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329885989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27158 + ... + 37380.

It is an arithmetic number, because the mean of its divisors is an integer number (29211672).

Almost surely, 2^329885987 is an apocalyptic number.

329885987 is a deficient number, since it is larger than the sum of its proper divisors (20654077).

329885987 is a wasteful number, since it uses less digits than its factorization.

329885987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330 (or 10307 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 59.

The square root of 329885987 is about 18162.7637489453. The cubic root of 329885987 is about 690.9627301893.

The spelling of 329885987 in words is "three hundred twenty-nine million, eight hundred eighty-five thousand, nine hundred eighty-seven".